Vendor Engineer – Cellular / WWAN Validation Debug
Location: Remond, WA Onsite/ Hybrid/ Remote: Onsite
Role Overview:
We are looking for a highly motivated vendor engineer with strong expertise in cellular technologies (4G/5G) to support device validation, debugging, and certification activities. The candidate will work closely with cross-functional teams (FW, SW, modem, and labs) to ensure robust cellular performance and compliance.
Key Responsibilities:- Perform end-to-end device validation for cellular technologies including LTE, 5G (SA/NSA) features
- Execute and analyze lab and field testing across multiple carriers and network conditions
- Conduct protocol-level debugging using logs (QXDM, MBIM traces, modem logs, etc.)Identify, isolate, and root-cause cellular connectivity issues (attach, call drops, data failures, standby behavior)
- Work with internal teams and vendors to triage bugs and drive issues to closure
- Support regression validation and sanity verification
- Generate test reports, defect summaries, and RCA documentation
- Contribute to improving test coverage, automation, and validation frameworks
Required Skills:- ExperienceCore Technical SkillsStrong protocol knowledge (3GPP – LTE/5G signaling, NAS/RRC basics, IMS/SIP flows)
- Device testing experience (smartphones, modems, or embedded systems)
- Hands-on experience with cellular test equipment (e.g., call boxes like Anritsu, Keysight, Rohde Schwarz)
- Experience in log analysis and debugging tools (e.g., QXDM, modem logs, trace analysis)
- Good understanding of cellular call flows, attach procedures, and data connectivity
Working knowledge of scripting (Python / PowerShell / Bash) for test automation, log parsing, or workflow efficiency"*" is an Equal Employment Opportunity employer. We promote and support a diverse workforce at all levels of the company. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, national origin, or disability. All applicants will be evaluated solely based on their ability, competence, and performance of the essential functions of their positions with or without reasonable accommodations. Reasonable accommodations also are available in the hiring process for applicants with disabilities. Candidates can request a reasonable accommodation by contacting the company ADA Coordinator at *.
